opengl | David Amador

OpenGL Camera 2d with zoom and rotation

I’ve been working on OpenGL for some time now and one of the things that some people have asked me is how

Around two years ago I made a tutorial for XNA in which you could render 2D games scaled to the current window

So here’s some quick code to save a screenshot of your OpenGL game in a TGA file. bool save_screenshot(string filename, int

So these past 2 weeks I’ve been adding some “bits and bytes” to the engine. Taking a rest between some more complex

Render to texture is a very handy functionality. Imagine your game allows for some character customization. You have the body, some different

So you can’t make a game without images, right? Well, actually you can but that’s another story. But how can you load

This had me scratching my head for awhile. At first I thought that glGetRenderbufferParameterivOES would properly detect Retina screen at 960×640 but

Even tough it’s not mandatory to support all screen orientations it’s always nice to support at least 2 of them. Let’s imagine

It’s been awhile since I last updated this, I’ve have my hands full with Vizati IPhone. Ever since I got an IPod